Contacts
Possibility that a lack of brake power assist may be caused by a defective check valve or by possible interference between the booster actuating huband dust seal retainer on the firewall. Loss of power assist will result in higher than normal brake pedal effort and make it difficult to stop within a satisfac- tory distance. (Inspect, test, and replace parts as required.)
What to do
- Check your VIN. Enter it at nhtsa.gov/recalls - it shows whether this recall applies to your vehicle and whether the repair has been done.
- Call a dealer. Any authorized GMC dealer will do the repair free, whether or not you bought the vehicle there. Quote campaign 67V089000.
- Ask about parts and a loaner. If parts aren't available yet, ask what to do in the meantime.
- Keep your paperwork. If you paid for this repair before the recall, you may be able to get reimbursed - here's how.